Sunnyside Carrier Annex Post Office

770 Custer Ave Sunnyside, WA 98944
Phone: 509-837-8165

Post Office Lobby Hours
Monday Closed
Tuesday Closed
Wednesday Closed
Thursday Closed
Friday Closed
Saturday Closed
Sunday Closed


Sunnyside Carrier Annex Post Office is a United States Postal Service (USPS) facility in Sunnyside, WA. This post office offers a full array of services, including package delivery and first class mail.


Carrier Services

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